10 NATO troops killed in Afghanistan

Canadian soldiers with 1st RCR Battle Group, The Royal Canadian Regiment, get ready to reinforce troops after one of their comrades got injured by an IED blast during a patrol outside Salavat, in the Panjwayi district, southwest of Kandahar, Afghanistan, Monday, June 7, 2010. IEDs have been the single biggest cause of death among Canadian troops in Afghanistan. Seven out of nine Canadian deaths this year were the result of IED blasts. (AP Photo/Anja Niedringhaus)
(Anja Niedringhaus - AP)

Canadian soldiers with 1st RCR Battle Group, The Royal Canadian Regiment, get ready to reinforce troops after one of their comrades got injured by an IED during a patrol outside Salavat, in the Panjwayi district, southwest of Kandahar, Afghanistan, Monday, June 7, 2010. IEDs have been the single biggest cause of death among Canadian troops in Afghanistan. Seven out of nine Canadian deaths this year were the result of IED blasts. (AP Photo/Anja Niedringhaus)
(Anja Niedringhaus - AP)

KANDAHAR AIRFIELD, AFGHANISTAN -- Ten NATO troops were killed Monday in bombings and shootings in eastern and southern Afghanistan, military officials said, in the deadliest day for the U.S.-led international force this year.

Also on Monday, two people, including an American civilian contractor, were killed when three suicide bombers launched a coordinated attack at a police training center in Kandahar city, officials said.

The attacks underscored the dangers U.S. forces face as 30,000 additional troops are being deployed to Afghanistan to fight a resurgent Taliban movement.

Seven of the slain troops were American, the Associated Press reported.

The day's deadliest attack occurred in eastern Afghanistan, where an improvised explosive device killed five troops, NATO military authorities said.

A sixth service member was fatally shot in eastern Afghanistan, NATO authorities said. The military command in eastern Afghanistan is predominantly American. Military officials say there has been a spike this year in roadside bombs in that region.

Meanwhile, two service members were killed in separate bombings, and one was fatally shot in southern Afghanistan, the most dangerous part of the country for foreign troops in recent months.

President Obama ordered the troop surge in an effort to secure Taliban strongholds, primarily in the south. U.S. commanders say securing Kandahar, located in the Taliban's heartland and the country's second-largest city, would mark a decisive turning point in the war.

Training police in Kandahar province has emerged as a top priority for U.S. officials.

Afghan officials said a suicide bomber rammed a vehicle into the outer wall of the police center, paving the way for two other suicide bombers on foot to run inside, according to the AP.

Fifty-three percent of Americans say the war in Afghanistan is not worth fighting, according to a Washington Post-ABC News poll released Monday -- an increase of one percentage point from a poll conducted in April. Forty percent say the war is worth fighting.

Meanwhile, 42 percent of respondents said the United States is winning the war, while 39 percent said America is losing.